Question

What’s the answer xx

Answer 1

Step-by-step explanation:

Hey there!

Given;

ABC is a Right angled triangle.

Taking angle "A" as reference angle, we get;

Perpendicular (p) = BC

hypotenuse (h) = 13cm

Base(b) = 8cm

We know;

${h}^{2} = {p}^{2} + {b}^{2}$

$or; \: p(BC) = \sqrt{ {h}^{2} - {b}^{2} }$

$BC = \sqrt{ {13}^{2} - {8}^{2} }$

$BC = \sqrt{169 - 64}$

$BC = \sqrt{105}$

$BC = 10.246$

Therefore, BC = 10.246cm.

Hope it helps...